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because the mass of hydrogen is less than that of helium
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An atom of helium has a mass about four times greater than that of an atom of hydrogen Which choice makes the correct comparison of the relative numbers of helium and hydrogen atoms in equal masses o?
the number of helium and hydrogen atoms is the same
The relative atomic mass of an atom can be found by comparing the mass of the atom to the mass of?
The Hydrogen atom. Beware, Hydrogen has an atomic mass based on one proton, as it doesn't have a neutron. So Helium has a mass of four times Hydrogen.
Which of the following elements is the most chemically reactive helium hydrogen argon or neon?
Helium, argon, and neon are noble gases, so the only "reactive" element of the four is hydrogen.
Do proton-proton chain convert four hydrogen nuclei into one helium nucleus?
Yes
What process describes one helium atom from four hydrogen atoms?
Hydrogen fusion is the creation of helium by fusion of hydrogen. It sometimes goes by the term proton-proton chain reaction. Two protons and two neutrons are fused in this reaction to create the helium nucleus. Wikipedia has particulars and a link is provided.
An atom of helium has a mass about four times greater than that of an atom of hydrogen Which choice makes the correct comparison of the relative numbers of helium and hydrogen atoms in equal masses o?
the number of helium and hydrogen atoms is the same
Why do hydrogen and helium make up the sun?
hydrogen & helium combine with fusion of four process
Why hydrogen diffuses four times more than oxygen?
I have never read that "hydrogen diffuses four times more than oxygen" and I'm not sure that it does. Did you mean it goes into solution easier or dissipates in air more readily or...? Not knowing to which you are referring I can only postulate that their respective physical attributes differ because of their significantly different atomic weights, hydrogen being 1.00794 g/mol and oxygen being 15.9994 g/mol.
What is the main source of energy in star like sun?
Hydrogen fusion is the main energy source in any star.Put very simply, four Hydrogen atoms fuse to create Helium. The atomic weight of Helium is slightly less than four Hydrogen atoms the extra mass is released as energy.
The relative atomic mass of an atom can be found by comparing the mass of the atom to the mass of?
The Hydrogen atom. Beware, Hydrogen has an atomic mass based on one proton, as it doesn't have a neutron. So Helium has a mass of four times Hydrogen.
Which of the following elements is the most chemically reactive helium hydrogen argon or neon?
Helium, argon, and neon are noble gases, so the only "reactive" element of the four is hydrogen.
Do proton-proton chain convert four hydrogen nuclei into one helium nucleus?
Yes
What process describes one helium atom from four hydrogen atoms?
Hydrogen fusion is the creation of helium by fusion of hydrogen. It sometimes goes by the term proton-proton chain reaction. Two protons and two neutrons are fused in this reaction to create the helium nucleus. Wikipedia has particulars and a link is provided.
Which inner planet mostly made of hydrogen and helium?
Jupiter and Saturn, though there is Helium and Hydrogen on Neptune and Uranus. The two buish planets are mostly menthane, which makes them blue. But Jupiter and Saturn have the most helium and hydrogen.
Which element is four times the atomic mass of helium?
This element is oxygen.
Why are stars stable as young star?
They have enough energy produced to fuse four hydrogen atoms into a helium atom.
What are the four main physical elements of the universe?
Hydrogen, helium, oxygen, and carbon are the most abundant elements in the universe.
